snort3 - official rules fail with ERROR: <<rulesfile>>:<<line>> unknown rule keyword: pcre.

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Maintainer: @flyn-org
Environment: ARM64, Bananapi BPI-R4, OpenWrt SNAPSHOT (r27913-a2aabc9a7a)

Description:
When trying to start snort3, thousands of rules fail to load with ERROR: <rulesfile>:<line no.> unknown rule keyword: pcre.

snort 3, 3.1.84.0-r4

   ,,_     -*> Snort++ <*-
  o"  )~   Version 3.1.84.0
   ''''    By Martin Roesch & The Snort Team
           http://snort.org/contact#team
           Copyright (C) 2014-2024 Cisco and/or its affiliates. All rights reserved.
           Copyright (C) 1998-2013 Sourcefire, Inc., et al.
           Using DAQ version 3.0.15
           Using LuaJIT version 2.1.0-beta3
           Using OpenSSL 3.0.15 3 Sep 2024
           Using libpcap version 1.10.5 (with TPACKET_V3)
           Using PCRE version 10.42 2022-12-11
           Using ZLIB version 1.3.1
           Using LZMA version 5.6.2

Reproduce:

• Install snort
• Setup config with oinkcode
• Download official ruleset with snort-rules
• Restart snort

More info:

root@defiant:/tmp/snort.d/rules# ldd /usr/bin/snort
        /lib/ld-musl-aarch64.so.1 (0x7f80856000)
        libtirpc.so.3 => /usr/lib/libtirpc.so.3 (0x7f80815000)
        libdaq.so.3 => /usr/lib/libdaq.so.3 (0x7f807f4000)
        libdnet.so.1 => /usr/lib/libdnet.so.1 (0x7f807d3000)
        libhwloc.so.15 => /usr/lib/libhwloc.so.15 (0x7f80772000)
        libluajit-5.1.so.2 => /usr/lib/libluajit-5.1.so.2 (0x7f806f1000)
        libcrypto.so.3 => /usr/lib/libcrypto.so.3 (0x7f8031c000)
        libpcap.so.1 => /usr/lib/libpcap.so.1 (0x7f802bb000)
        libpcre2-8.so.0 => /usr/lib/libpcre2-8.so.0 (0x7f8025a000)
        libz.so.1 => /usr/lib/libz.so.1 (0x7f80229000)
        libatomic.so.1 => /lib/libatomic.so.1 (0x7f80207000)
        liblzma.so.5 => /usr/lib/liblzma.so.5 (0x7f801d6000)
        libuuid.so.1 => /usr/lib/libuuid.so.1 (0x7f801b5000)
        libtcmalloc.so.4 => /usr/lib/libtcmalloc.so.4 (0x7f7ffa2000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x7f7fd9d000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x7f7fd6c000)
        libc.so => /lib/ld-musl-aarch64.so.1 (0x7f80856000)
        libpciaccess.so.0 => /usr/lib/libpciaccess.so.0 (0x7f7fd4b000)
        libunwind.so.8 => /usr/lib/libunwind.so.8 (0x7f7fd09000)

Logs not included because it's 12114 errors (463 warnings).

Reproduce the failure using Snort 3.1.84.0-r4 on ARM64 OpenWrt SNAPSHOT after installing the official rules with snort-rules. Inspect how the rules are installed and loaded; done means the official rules load without the reported unknown rule keyword: pcre errors.